Meiosis is needed to create sex cells which are also known as ________.
Correct Answer gametes
2.
Sex cells are?
A.
Diploid
B.
Haploid
Correct Answer B. Haploid
3.
Prophase 1
The chromosomes have appeared and the nuclear _______ is still present. The chromosomes each consist of two ________. They form homologous pairs.
Correct Answer envelope chromatids
4.
Metaphase 1
The ________ move to opposite poles of the cell and the spindle is set up. The nuclear envelope has now disintegrated. The ________ of the chromosomes are still in their homologous pairs.
Correct Answer centrioles centromeres
5.
Anaphase 1
The spindle fibers pull the chromosomes to opposite sides of the cell. One ________ from each cell is pulled to each pole.
Correct Answer chromosome
6.
Telophase 1
A new _____ _______ forms around each group of chromosomes at each pole.
Correct Answer nuclear envelope
7.
Prophase 2
The ______ _______ breaks down again.
Correct Answer nuclear envelope
8.
Metaphase 2
The ______ ______ are set up, and the chromosomes line up on the ______ of the spindle, attached by their centromeres. The spindle starts to re-form.
Correct Answer spindle fibres equator
9.
Anaphase 2
The _______ have divided and the daughter chromatids are pulled to the opposite poles of the cell.
Correct Answer centromeres
10.
Telophase 2
Four ______ cells are formed, each with a haploid number of chromosomes.
Correct Answer haploid
11.
Chromatids of homologous chromosomes twist round each other at places called _________. This process is called _______ ______,
Correct Answer chiasmata crossing over
12.
During anaphase 1, homologous chromosomes are separated. However, it is random in which chromosome migrates to which pole. The homologous chromosomes are not genetically identical so there are many different combinations available. This is known as ________ ________.
Correct Answer independant assortment
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